Материал: part03

Page 781​

Attribute Name​

Tag​

Type​

Attribute Description​

>>Applicator Type​

(300A,0109)​

1​

Type of Applicator.​

Page 782​

Attribute Name​

Tag​

Type​

Attribute Description​

>>General Accessory Type​

(300A,0423)​

3​ Specifies the type of accessory.​

Defined Terms:​

GRATICULE​

Accessory tray with a radio-opaque grid​

IMAGE_DETECTOR​Image acquisition device positioned in the beam​

line​

RETICLE​

Accessory tray with radio-transparent markers or​

grid​

>>Accessory Code​

(300A,00F9)​

3​ Machine-readable identifier for this accessory​

>>Source to General​

(300A,0425)​

3​ Radiation source to general accessory distance (in mm) for current​

Accessory Distance​

accessory.​

>Current Fraction Number​

(3008,0022)​

2​ Fraction number for this beam administration.​

>Treatment Delivery Type​

(300A,00CE)​

2​ Delivery Type of treatment.​

Defined Terms:​

TREATMENT​

Normal patient treatment​

OPEN_PORTFILM​Portal image acquisition with open field​

TRMT_PORTFILM​Portal image acquisition with treatment port​

CONTINUATION​ Continuation of interrupted treatment​

SETUP​

No treatment beam is applied for this RT Beam. To​

be used for specifying the gantry, couch, and other​

machine positions where X-Ray set-up images or​

measurements are to be taken.​

VERIFICATION​ Treatment used for Quality Assurance rather than​

patient treatment​

>Treatment Termination​

(3008,002A)​

1​ Conditions under which treatment was terminated.​

Status​

Enumerated Values:​

NORMAL​ treatment terminated normally​

OPERATOR​operator terminated treatment​

MACHINE​machine terminated treatment​

UNKNOWN​status at termination unknown​

>Treatment Termination​

(3008,002B)​

3​ Treatment machine termination code. This code is dependent upon the​

Code​

particular application and equipment.​

>Treatment Verification​

(3008,002C)​

2​ Conditions under which treatment was verified by a verification system.​

Status​

Enumerated Values:​

VERIFIED​

treatment verified​

VERIFIED_OVR​treatmentverifiedwithatleastoneout-of-rangevalue​

overridden​

NOT_VERIFIED​treatment verified manually​

>Specified Primary Meterset​

(3008,0032)​

3​ Desired machine setting of primary Meterset.​

>Specified Secondary​

(3008,0033)​

3​ Desired machine setting of secondary Meterset.​

Meterset​

>Delivered Primary Meterset​

(3008,0036)​

3​ Machine setting actually delivered as recorded by primary Meterset.​

>Delivered Secondary​

(3008,0037)​

3​ Machine setting actually delivered as recorded by secondary Meterset.​

Meterset​

>Specified Treatment Time​

(3008,003A)​

3​ Treatment Time set (sec).​

>Delivered Treatment Time​

(3008,003B)​

3​ Treatment Time actually delivered (sec).​

DICOM PS3.3 2020a - Information Object Definitions​

Page 783​

Attribute Name​

Tag​

Type​

Attribute Description​

>Number of Control Points​

(300A,0110)​

1​

Number of control points delivered.​

Value shall be greater than or equal to 2.​

>Control Point Delivery​

(3008,0040)​

1​

Sequence of beam control points for current treatment beam.​

Sequence​

The number of Items in this Sequence shall equal the value of Number​

of Control Points (300A,0110).​

See Section C.8.8.21.1.​

>>Referenced Control Point​

(300C,00F0)​

3​

Uniquely identifies Control Point specified by Control Point Index​

Index​

(300A,0112) within Beam referenced by Referenced Beam Number​

(300C,0006).​

>>Treatment Control Point​

(3008,0024)​

1​

Date when the delivery of radiation at this control point began. For the​

Date​

final control point this shall be the Date when the previous control point​

ended.​

>>Treatment Control Point​

(3008,0025)​

1​

Time when the delivery of radiation at this control point began. For the​

Time​

final control point this shall be the Time when the previous control point​

ended.​

>>Specified Meterset​

(3008,0042)​

2​

Desiredmachinesettingforcurrentcontrolpoint.SeeSectionC.8.8.21.2.​

>>Delivered Meterset​

(3008,0044)​

1​

Machine setting actually delivered at current control point. See​

Section C.8.8.21.2.​

>>Dose Rate Set​

(300A,0115)​

2​

Dose Rate set on treatment machine for segment beginning at current​

control point (Meterset/min).​

>>Dose Rate Delivered​

(3008,0048)​

2​

Dose Rate actually delivered for segment beginning at current control​

point (Meterset/min).​

>>Nominal Beam Energy​

(300A,0114)​

3​

Nominal Beam Energy at control point.​

>>NominalBeamEnergyUnit​

(300A,0015)​

1C​

UnitsusedforNominalBeamEnergy(300A,0114).RequiredifNominal​

Beam Energy (300A,0114) is present.​

Defined Terms:​

MV​ Megavolt​

MEV​Mega electron-Volt​

IfRadiationType(300A,00C6)isPHOTON,NominalBeamEnergyUnit​

(300A,0015)shallbeMV.IfRadiationType(300A,00C6)isELECTRON,​

Nominal Beam Energy Unit (300A,0015) shall be MEV.​

>>WedgePositionSequence​

(300A,0116)​

3​

Sequence of Wedge positions for current control point.​

One or more Items are permitted in this Sequence.​

>>>Referenced Wedge​

(300C,00C0)​

1​

Uniquely identifies wedge specified by Wedge Number (300A,00D2)​

Number​

within the Recorded Wedge Sequence (3008,00B0).​

>>>Wedge Position​

(300A,0118)​

1​

Position of Wedge at current control point.​

Enumerated Values:​

Page 784​

Attribute Name​

Tag​

Type​

Attribute Description​

>>Beam Limiting Device​

(300A,011A)​

1C​

Sequence of beam limiting device (collimator) jaw or leaf (element)​

Position Sequence​

positions.​

One or more Items shall be included in this Sequence.​

Required for Control Point 0 of Control Point Delivery Sequence​

(3008,0040)orifbeamlimitingdevice(collimator)changesduringbeam​

administration.​

>>>RTBeamLimitingDevice​

(300A,00B8)​

1​

Typeofbeamlimitingdevice.ThevalueofthisAttributeshallcorrespond​

Type​

to RT Beam Limiting Device Type (300A,00B8) defined in an element​

of Beam Limiting Device Leaf Pairs Sequence (3008,00A0).​

Enumerated Values:​

X​

symmetric jaw pair in IEC X direction​

Y​

symmetric jaw pair in IEC Y direction​

ASYMX​asymmetric jaw pair in IEC X direction​

ASYMY​asymmetric pair in IEC Y direction​

MLCX​multileaf (multi-element) jaw pair in IEC X direction​

MLCY​multileaf (multi-element) jaw pair in IEC Y direction​

>>>Leaf/Jaw Positions​

(300A,011C)​

1​

Positions of beam limiting device (collimator) leaf (element) or jaw pairs​

(mm) in IEC BEAM LIMITING DEVICE coordinate axis appropriate to​

RT Beam Limiting Device Type (300A,00B8), e.g., X-axis for MLCX,​

Y-axis for MLCY. Contains 2N values, where N is the Number of​

Leaf/JawPairs(300A,00BC)definedinelementofBeamLimitingDevice​

Leaf Pairs Sequence (3008,00A0). Values shall be in IEC leaf subscript​

order 101, 102, … 1N, 201, 202 … 2N.​

>>Gantry Angle​

(300A,011E)​

1C​

Treatment machine gantry angle, i.e., orientation of IEC GANTRY​

coordinate system with respect to IEC FIXED REFERENCE coordinate​

system(degrees).RequiredforControlPoint0ofControlPointDelivery​

Sequence (3008,0040) or if Gantry Angle changes during beam​

administration.​

>>Gantry Rotation Direction​

(300A,011F)​

1C​

Direction of Gantry Rotation when viewing gantry from isocenter, for​

segment beginning at current Control Point. Required for Control Point​

0 of Control Point Delivery Sequence (3008,0040), or if Gantry Rotation​

Direction changes during beam administration.​

Enumerated Values:​

CW​ clockwise​

CC​

counter-clockwise​

NONE​no rotation​

>>Gantry Pitch Angle​

(300A,014A)​

3​

Gantry Pitch Angle. i.e., the rotation of the IEC GANTRY coordinate​

system about the X-axis of the IEC GANTRY coordinate system​

(degrees). If used, must be present for first Item of Control Point​

Sequence, or if used and Gantry Pitch Rotation Angle changes during​

Beam, must be present. See Section C.8.8.25.6.5.​

DICOM PS3.3 2020a - Information Object Definitions​

Page 785​

Attribute Name​

Tag​

Type​

Attribute Description​

>>Gantry Pitch Rotation​

(300A,014C)​

3​

Direction of Gantry Pitch Angle when viewing along the positive X-axis​

Direction​

of the IEC GANTRY coordinate system, for segment following Control​

Point. If used, must be present for first Item of Control Point Sequence,​

or if used and Gantry Pitch Rotation Direction changes during Beam,​

must be present. See Section C.8.8.14.8 and Section C.8.8.25.6.5.​

Enumerated Values:​

CW​ clockwise​

CC​

counter-clockwise​

NONE​no rotation​

>>Beam Stopper Position​

(3008,0230)​

3​

Position of Beam Stopper during beam administration.​

Enumerated Values:​

EXTENDED​Beam Stopper extended​

RETRACTED​Beam Stopper retracted​

UNKNOWN​Position unknown​

>>Beam Limiting Device​

(300A,0120)​

1C​

Beam Limiting Device (collimator) angle, i.e., orientation of IEC BEAM​

Angle​

LIMITING DEVICE coordinate system with respect to IEC GANTRY​

coordinate system (degrees). Required for Control Point 0 of Control​

Point Delivery Sequence (3008,0040) or if beam limiting device​

(collimator) angle changes during beam delivery.​

>>Beam Limiting Device​

(300A,0121)​

1C​

Direction of Beam Limiting Device Rotation when viewing beam limiting​

Rotation Direction​

device (collimator) from radiation source, for segment beginning at​

current Control Point. Required for Control Point 0 of Control Point​

Delivery Sequence (3008,0040) or if Beam Limiting Device Rotation​

Direction changes during beam administration.​

Enumerated Values:​

CW​ clockwise​

CC​

counter-clockwise​

NONE​no rotation​

>>Patient Support Angle​

(300A,0122)​

1C​

Patient Support angle, i.e., orientation of IEC PATIENT SUPPORT​

(turntable) coordinate system with respect to IEC FIXED REFERENCE​

coordinate system (degrees). Required for Control Point 0 of Control​

Point Delivery Sequence (3008,0040) or if Patient Support Angle​

changes during beam administration.​

>>Patient Support Rotation​

(300A,0123)​

1C​

Direction of Patient Support Rotation when viewing table from above,​

Direction​

for segment beginning at current Control Point. Required for Control​

Point 0 of Control Point Delivery Sequence (3008,0040), or if Patient​

Support Rotation Direction changes during beam administration.​

Enumerated Values:​

CW​ clockwise​

CC​

counter-clockwise​

NONE​no rotation​

>>Table Top Eccentric Axis​

(300A,0124)​

3​

Distance (positive) from the IEC PATIENT SUPPORT vertical axis to​

Distance​

the IEC TABLE TOP ECCENTRIC vertical axis (mm).​

>>TableTopEccentricAngle​

(300A,0125)​

1C​

Table Top (non-isocentric) angle, i.e., orientation of IEC TABLE TOP​

ECCENTRICcoordinatesystemwithrespecttoIECPATIENTSUPPORT​

coordinate system (degrees). Required for Control Point 0 of Control​

Point Delivery Sequence (3008,0040) or if Table Top Eccentric Angle​

changes during beam administration.​